19,863 research outputs found
Public ubiquitous computing systems:lessons from the e-campus display deployments
In this paper we reflect on our experiences of deploying ubiquitous computing systems in public spaces and present a series of lessons that we feel will be of benefit to researchers planning similar public deployments. We focus on experiences gained from building and deploying three experimental public display systems as part of the e-campus pro ject. However, we believe the lessons are likely to be generally applicable to many different types of public ubicomp deployment
Exploring Bluetooth based Mobile Phone Interaction with the Hermes Photo Display
One of the most promising possibilities for supporting user interaction with public displays is the use of personal mobile phones. Furthermore, by utilising Bluetooth users should have the capability to interact with displays without incurring personal financial connectivity costs. However, despite the relative maturity of Bluetooth as a standard and its widespread adoption in todayâs mobile phones, little exploration seems to have taken place in this area - despite its apparent significant potential. This paper describe the findings of an exploratory study nvolving our Hermes Photo Display which has been extended to enable users with a suitable phone to both send and receive pictures over Bluetooth. We present both the technical challenges of working with Bluetooth and, through our user study, we present initial insights into general user acceptability issues and the potential for such a display to facilitate notions of community
Timely and keyword-based dynamic content selection for public displays
In public display systems determine what to present
and when is a central feature. Although several adaptive
scheduling alternatives have been explored, which introduce
sensibility of the display to some type of external variable, they
are still very dependent on the user in their behavior, content
specific in their nature and very rigid in their adaptation to
their social environment, not providing visitors of the place
with appropriate, rich and personalized information according
to their interests and expectations. There is a need for solutions
that successfully integrate the wealth of dynamic web sources
as providers for situated and updated content with social and
contextual environment around the display so as to present the
most appropriate content at every moment, and thus
improving the utility of the system. In this paper, we present a
recommender system for public situated displays that is able to
autonomously select relevant content from Internet sources
using a keyword-based place model as input. Based on external
relevance criteria the system finds and pre-selects only those
sources that are more relevant, and an adaptive scheduling
algorithm continuously select content that are relevant, timely,
in accordance with the place model, sensitive to immediate
indications of interest and balanced to serve the broad range of
interests of the target population. To evaluate this system we
have carried out two partial experiments. The results showed
that keyword-based shared place models jointly with content
specific relevance models are a simple and valid approach to
user-generated content for public displays.The first author was supported by a Portuguese Foundation for Science and Technology scholarship (SFRH/BD/31292/2006)
Display-centred applications in ubiquitous computing
Public displays can play an important enabling role in ubiquitous computing environments. This paper describes an on-going work for a multipurpose, multi-display infrastructure, designed to address the requirements of display-centred applications in ubiquitous computing environments. The system provides an infrastructure in which situated displays can act as portals to the physical space, allowing ubicomp applications to support their association with the physical world by providing them with display services and situationspecific user input and context information
Key challenges in application and content scheduling for Open Pervasive Display Networks
Todayâs digital signage systems typically show
content that has been scheduled well in advance by their respective âownersâ, i.e., companies or individuals who paid for and/or operate the public display. However, with the shift to open display networks that can obtain content from many
sources and the corresponding advances in interaction and sensing technologies, the scheduling requirements in this domain are set to change radically. For example, we envision
that displays in our environment will soon be able to adapt to their surroundings and allow viewers to appropriate them by actively selecting and/or contributing content. Such levels of interactivity and context-awareness will require new approaches to content scheduling. In this paper we discuss the challenges faced in developing new forms of application and content scheduling for Open Pervasive Display Networks.(undefined
Place-aware content selection from dynamic web sources for public displays
Public digital displays could greatly benefit from
the ability to dynamically select from the Internet content
items that would be strongly related with the place where each
display is installed. Generically, this is similar to the type of
problem addressed by recommender systems. However, the
usage context of a public display raises specific challenges that
may limit the applicability of existing recommender systems.
In this paper, we explore the creation of a recommender
system for public situated displays that is able to autonomously
select relevant content from Internet sources using keywords
as input. This type of recommender system should enable
public displays to become devices for Internet information
delivery in public spaces, while also making them more
situated in the social settings in which they are installed. We
have created a recommender system based on these principles
and we have conducted two studies to evaluate the perceived
performance of the system. The results have shown that
keywords can be very effective in driving user-generated
content, but they often need to be complemented with
contextual information that disambiguates their semanticsFundação para a CiĂȘncia e a Tecnologia (FCT) - SFRH/BD/31292/200
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Entertaining situated messaging at home
Leisure and entertainment-based computing has been traditionally associated with interactive entertainment media and game playing, yet the forms of engagement offered by these technologies only support a small part of how we act when we are at leisure. In this paper, we move away from the paradigm of leisure technology as computer-based entertainment consumption, and towards a broader view of leisure computing. This perspective is more in line with our everyday experience of leisure as an embodied, everyday accomplishment in which people artfully employ the everyday resources in the world around them in carrying out their daily lives outside of work. We develop this extended notion of leisure using data from a field study of domestic communication focusing on asynchronous and situated messaging to explore some of these issues, and develop these findings towards design implications for leisure technologies. Central to our discussion on the normal, everyday and occasioned conduct of leisure lie the notions of playfulness and creativity, the interweaving of the worlds of work and leisure, and in the creation of embodied displays of affect, all of which may be seen manifested in the use of messaging artefacts. This view of technology in support of leisure-in-the-broad is strongly divergent from traditional entertainment computing models in its coupling of the mechanics of the organisation of everyday life to the ways that we make entertainment for ourselves. This recognition allows us to draw specific implications for domestic situated messaging technologies, but also more generally for technology design by tying activities that we tend to regard as purely functional to other multifaceted and leisure-related purposes
Application synchronisation on public displays based on PubSubHubbub
Large-scale pervasive public displays networks are becoming an emerging paradigm and represent a radical transformation in the way we think about information dissemination in public spaces. One of the features of pervasive public display systems is their ability to create experiences that span across multiple displays in a coordinated fashion.
Proprietary single site display solutions exist but these are not open to third-party developers.
On the other hand, scalable open systems that enable large-scale, synchronised and multi-screen experiences, spanning multiple networks domains
will call for the definition of multiple administrative boundaries that accommodate function partitioning. In our research, we are studying the key requirements involved in this open application synchronisation and present our initial work on designing a synchronisation model and
Application Programming Interface for public displays application developers that is built on top of the PubSubHubbub protocol, an open protocol
for distributed publish/subscribe communication on the Internet.Fundação para a CiĂȘncia e a Tecnologia (FCT
Beyond application-led research in pervasive display systems
This position paper argues that more research is needed into identifying key abstractions and reference criteria for multi-purpose display systems. This would enable research in this area to go beyond the development of specific applications and move towards enabling infrastructures that could serve the needs of multiple applications.Fundação para a CiĂȘncia e Tecnologia (FCT) - POSC/EIA/58832/2004FEDER - POS_Conheciment
Autonomous and context-aware scheduling for public displays using place-based tag clouds
Public displays are an increasingly ubiquitous element of our socio-digital landscape with a strong potential to become key building blocks for AmI. For that purpose, they should have the ability to dynamically and autonomously select content from web sources according to the relevance of their content to the Continuous flow of social settings around the display. In this paper, we explore the creation of a public display system that evaluates the relevance of content from web sources and selects the most relevant content according to a dynamic tag cloud that incorporates static place definitions, but is also sensitive to the people around the display. We have developed and evaluate a dynamic content selection system based on those principles.. The results show that place visitors recognize the sensitivity of the system to their demands and that a place tag cloud can provide an important element for the interpretation of place and for the combination of the interests expressed by the place owner and the multiple place visitors.The first author was supported by a Portuguese Foundation for Science and Technology scholarship (SFRH/BD/31292/2006)
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